Hawke Sport Optics Nite-Eye Digital 2.5-10x50mm Rifle Scope HK5140 is a high-powered rifle scope by Hawke that's optimized for low-light shooting, great for hunters who shoot at dawn, dusk, or in heavily wooded areas. This Hawke Sport Optics rifle scope is excellent at gathering light when there's little to be had, thanks to its 50mm objective lens and fully multi-coated optics, resulting in bright, clear images in almost any lighting condition. The rifle scope is equipped with a dual illuminated reticle in red and blue; 24 different brightness settings are controlled by a 2-button digital illumination system, and the Hawke Optics Nite Eye Digital 2.5-10x Dual Illuminated Riflescope has an automatic shut off feature that will help save battery life. Hawke Sport Optics has built the Nite Eye with a side focus knob for excellent long-range parallax adjustment, and the sturdy one piece main tube is waterproof, fog proof, and shock proof. For a low-light rifle scope that excels when all other scopes go dark, choose the Hawke NiteEye Digital 2.5-10x50mm Side Focus Scope.